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BQ24040 TS 做使能应用

Other Parts Discussed in Thread: BQ24040

Dear Sir:

在使用BQ24040时,TS脚不需用来检测电池温度,采用MCU控制TS脚来实现使能和关断功能。发现档TS脚被拉低时,BQ24040有时候会关断充电功能,有时候不会关断,甚至有时候是1/2 快充电流(ISET1设置电流)充电。做实验时,是用线直接短到地和将TS用0K电阻直接连到地来实现的。

请问下为何实现不了用TS来使能BQ24040的功能? 是有哪个地方没有注意到吗 ?